1 files changed, 2 insertions, 3 deletions

diff --git a/fs/sysfs/file.c b/fs/sysfs/file.c
index 5d818df7250b..c3795978b404 100644
--- a/fs/sysfs/file.c
+++ b/fs/sysfs/file.c
@@ -275,11 +275,10 @@ static ssize_t sysfs_write_file(struct file *file, const char __user *user_buf,
 {
         struct sysfs_open_file *of = sysfs_of(file);
         ssize_t len = min_t(size_t, count, PAGE_SIZE);
+        loff_t size = file_inode(file)->i_size;
         char *buf;
 
-        if (sysfs_is_bin(of->sd)) {
-                loff_t size = file_inode(file)->i_size;
-
+        if (sysfs_is_bin(of->sd) && size) {
                 if (size <= *ppos)
                         return 0;
                 len = min_t(ssize_t, len, size - *ppos);